Injector.



E. JOSSE a W. GENSECKE` INJECTOE. APPLNATIB FLBD 001231, 1912.

Patented Dec. 1, 1914.

EMIL JOSSE AND WIHELM GENSECKE, OF CHARLOTTENBURG, GERMANY, SSIGNORS TGESELLSCHAFT FUER KAELTEINDUSTRIE M11* BESCHBNKTER HAFTUNG, 0F BERLN,GERMANY, A CORPRATGN Fl GERMANY.

minoren.

Specication of Letters Patent.

ratemea'nee. i, raie.

application filed October 31, 1912. Serial No. 728,760.

. and useful improvements in Injectors, 0I"

which the following is a specification.

This' invention relatesuto improvementsvin steam jet apparatus and4 hasfor its object to increase the eiiiciency of the said steamjetapparatus. cordance with the present invention by increasing the Contactsurface between the,- driving and driven media without the con# versionof energy in the nozzle beingintere" fered with. ToV this end, theenlargement of the cross sectional area'both of the nozzle and of thediffuser takes place in each casei mainly in one plane and the planes ofthel cross'seotionalexpansion of the nozzle andditluser are at rightangles to one another.`

The invention is illustrated in various embodiments in the accompanyingdrawings, in-

which- Figure l shows a longitudinal section of a nozzle and a diuser ofrectangular' slot form in cross section; Fig. 2 shows the same inlongitudinal section at right Akangles to Fig. l.; Fig. 3 is a crosssection on the line 1 2 of Fig.' l; and Fig. e a plan of another form ofthe nozzle viz. cross shaped in lcross section.

.in the iirst forni '(in which the nozzle and diuser are expanded in twoplanes at right angles to one another) the cross sectionalV ration fromthe walls and by stoppage are` avoided. The expansion of thenozzle Lasshown in Figs. l and 2 takes place in one plane while the distancebetween thenozzle walls is constant in the plane at right angles Thisobject is attained in ac,

thereto. Thus the nozzle is widened from. the inlet to theA outlet toform a rectangular extended slot. The diffuser?) is arranged 1n adierent manner. The ldistance apart of the diffuser walls is constantinthat plane in which the nozzle is expanded while the tapering andexpansion of the diiiuser take place in the plane at right anglesthereto in wliich the distance between the walls of the nozzle isconstant (Fig. 2). As a result the foi-cmg 3et entersthe diffuser as anarrow I' uniformly flowing band and a large contact the arrangement inthe diuser produces only small alterations in direction of the streamlines. The result of this arrangement is a considerable increase in theetliciency of thea' et pump.

The embodiment illustrated in Fig'. 4 differs from that/ shown in Figs.l to 3 only in this that the nozzle a is of cross or star shape in crosssection. It `has also the particular feature that the expansion of thenozzle and of the diffuser takes place in planes at right angles to oneanother.

What we claim as new and desire vto se- .cure by Letters Patent of theUnited States rs:

1. The combination of a nozzle of rectangular cross-section with adiluser of rectangular crosssection,`said nozzle and diffuser beingenlarged in planes at right angles to each other.

'2. The combination of a plurality of nozzles of rectangularcross-section intersecting each other with a'plurality of diitusers oli'rectangular cross-section intersecting each other, each nozzle anddiffuser being enlarged in. planes at right angles to each other.

In testimony whereof we affix our signatures inpresence of twowitnesses.v

EMIL JOSSE. WILHELM GENSECKE.

